Home / 1,860.71-2,569.59-1,685.75

Finding the Fourth Proportional to 1,860.71, 2,569.59 and 1,685.75

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Solution

The fourth proportional to 1,860.71, 2,569.59 and 1,685.75 is: 2,327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.71 : 2,569.59 = 1,685.75 : x
  2. Step 2: Convert to fraction form
    1,860.71/2,569.59 = 1,685.75/x
  3. Step 3: Cross multiply
    1,860.71x = 2,569.59 × 1,685.75
  4. Step 4: Simplify right side
    1,860.71x = 4,331,673.49
  5. Step 5: Solve for x
    x = 4,331,673.49/1,860.71
  6. Step 6: Final answer
    x = 2,327.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.